baber/WOPTO huggingface dataset:
Patent GB-639025-A (GB)
Title: Emulsions of ethylene polymers and interpolymers
IPC: C08F10/00
Filed: 1947-11-19
Abstract: Aqueous emulsions of solid ethylene polymers are prepared by polymerizing ethylene, alone or together with other substances having a carbon-carbon double bond, carbon monoxide, formaldehyde or hydrogen, at a temperature above 50 DEG  C. and a pressure above 200 atmospheres in the presence of water, a non-ionic emulsifying agent and an organic sulphonic acid or derivative thereof. Specified non-ionic emulsifying agents are polyvinyl alcohol, partially or completely hydrolysed polyvinyl acetate and its interpolymers, cellulose alkyl ethers, fatty acid esters of mannitan or sorbitan, the mono-cetyl and mono-oleyl ethers of polyethylene glycols and the p-isooctyl phenyl ethers of a polypropylene glycol.  The preferred sulphonic acid derivative is the sodium salt of oleo-p-anisidide sulphonate, others specified include calcium stearo-p-anisidide sulphonate, sodium dioctyl sulphosuccinate, p-stearamido-benzene sulphonic acid, sodium methyl stearamido-ethane-b -sulphonate, sodium cetyl benzene sulphonate, sodium dodecyl benzene sulphonate, sodium cetyl sulphate, ammonium oleyl sulphate, triethanolammonium lauryl sulphate, sodium methyl oleate sulphonate and potassium stearophenone sulphonate.  Inert organic solvents such as benzene may be present. The process may be carried out continuously.  If desired polymerization catalysts may be used, e.g. oxygen, di-tert.-butyl or diethyl peroxide and azodicyclohexane carbonitrile.  The emulsions obtained are stable and may be used in coating fabric and paper, and as adhesives, if desired with addition of a thickening agent, e.g. ammonium polymethacrylate. Powdered products obtained by precipitation from the emulsion by addition of aliphatic alcohols, acetone, aluminium sulphate or calcium chloride, may be moulded to films which may be cold-drawn.
Patent GB-794449-A (GB)
Title: Improvements in or relating to ring spinning machines
IPC: D01H1/02
Filed: 1955-10-27
Abstract: 794,449. Twist tubes; braking arrangements. SUTTER, J. Oct. 27, 1955 [April 22, 1955], No. 30790/55. Class 120(2) In a ring spinning machine, the yarn is twisted between rollers 1 and the traveller 13 by a revolving element 4 comprising a spindle member around which the yarn may be wound, two upper lateral exterisions, and an enlarged lower extension having an axial hole terminating in inclined holes. The element 4 may be braked by a friction disc 16 simultaneously with the application of the main spindle brake 14 by means of a rod 15.
Patent GB-1184004-A (GB)
Title: Process for the Production of Urea having a Low Carbamate Content
Inventor: GUADALUPI M
IPC: C07C239/00
Filed: 1968-06-27
Abstract: 1,184,004. Urea. SNAM PROGETTI S.p.A. 27 June, 1968 [29 Sept., 1967], No. 30814/68. Heading C2C. Urea production comprises feeding gaseous CO 2  and an excess of liquid or gaseous NH 3  to a synthesis zone in a reactor, reacting the CO 2  and NH 3  therein so as to produce, as the reaction product, a solution of urea contaminated with ammonium carbamate and containing the excess NH 3 , causing or allowing the said solution to flow as a thin film over a surface in a decomposition chamber in which the temperature and pressure are substantially the same, heated to an extent sufficient to cause at least part of the ammonium carbamate to decompose into gaseous CO 2  and NH 3 , recycling the decomposition products as well as the excess NH 3  to the synthesis zone, and recovering the urea solution having a reduced ammonium carbamate content. The thin liquid film may be obtained, e.g. by allowing the reaction product to drop along the inside wall of a heat exchanger or along the wall of part of the reactor other than the synthesis zone. Synthesis and decomposition may be effected at a temperature of 180- 350‹ C. and pressure of 100-300 atm. The presence of NH 3  excess and consequent dissolved NH 3  in the solution from the synthesis zone is essential and the usual NH 3 /CO 2  ratio is from 2À3:1 to 5À5:1.
Patent GB-520550-A (GB)
Title: Improvements in or relating to electric dry shavers
IPC: B26B19/38
Filed: 1938-10-25
Abstract: 520,550. Dry shavers. REMINGTON RAND, Inc. Oct. 25, 1938, No. 30855. Convention date, Nov. 27, 1937. Addition to 520,538. [Class 131] To facilitate the removal of the inner reciprocating cutter 25 from a dry shaver without dismantling the outer cutter 24, the eccentric 31 which' operates the. inner cutter is disengaged therefrom by moving a trigger 23 to depress a plate 39, which depresses in turn the eccentric spindle 30 and the spring-pressed plungers 51. The driving shaft 28 has a splined connection 29, 34 with the spindle 30.
Patent GB-505447-A (GB)
Title: Improvements in or relating to measuring devices for determining the quantity of liquid in a container mounted on an unstable base
IPC: G01F23/26
Filed: 1937-11-10
Abstract: 505,447. Capacitance measurements. SIEMENS APPARATE UND MASCHINEN GES. Nov. 10, 1937, No. 30901. Convention date, Nov. 27, 1936. [Class 37] [Also in Group XXXVIII] In a system for indicating the quantity of liquid in a container, e.g. the fuel tank of an aircraft, the liquid forms the dielectric of one or more condensers connected in a high-frequency A.C. bridge circuit which may be manually or automatically balanced. As shown, groups of condensers 5, 6, 7, 8 are mounted in the fuel tanks located in the wings of an aircraft, the separate groups corresponding to the different wings and being connected in a bridge circuit by an electromagnetic changeover-switch r operated by a switch s on the instrument panel. The bridge circuit is supplied by a valve generator 4 through a transformer U1, the secondary winding W2 of which is connected to the condensers to form a bridge connection. The output of the bridge is connected through a transformer U<SP>2</SP> to a rectifier bridge consisting of rectifiers Gl<SP>1</SP>, Gl<SP>2</SP> and condensers C<SP>4</SP>, C<SP>5</SP>. Windings W<SP>3</SP>, W<SP>4</SP> supply auxiliary potential to the rectifier bridge so as to assist and oppose respectively the output of the measuring bridge in the two rectifier circuits. The output of the rectifier bridge is connected to a differential instrument J. When the bridge becomes unbalanced due to the change in quantity of liquid, a condenser C<SP>8</SP> is adjusted to restore the reading of the instrument J to zero. The condenser C<SP>8</SP> may be operated automatically by a motor controlled by the instrument J through a bolometer relay. Condensers C<SP>9</SP>, C<SP>10</SP> are provided for calibration purposes. The heating and anode potentials for the valve generator ,are supplied by the aircraft battery 10. The conductors extending to the condensers are screened and the lower limit of the high-frequency current employed is 30 kilocycles.
Patent GB-336423-A (GB)
Title: Improvements in and relating to electric fuses for blasting
IPC: F42B3/18
Filed: 1929-10-11
Abstract: 336,423. Oesterreichische Dynamit Nobel Akt.-Ges. Nov. 14, 1928, [Convention date]. Blasting fuzes.-Relates to electric fuzes made safe by a short-circuit of the lead in wires 2 and consists in effecting this shortcircuit by direct contact between the barbed wires 9 at several points A, Fig. 3, or along a certain portion 10, Fig. 4<b>, of their lengths. The contact is maintained by soldering, or by twisting the wires together, or by wrapping round preferably with a conducting wire or strip, or by a clamp 12 or a press button fastener preferably of conducting material. The short circuit is undone just before the firing operation.
Patent GB-244466-A (GB)
Title: Automatic de-clutching and braking device for nailing machines
IPC: B27F7/05
Filed: 1925-12-09
Abstract: 244,466. Compagnie de Machines Automatiques Savingma. Dec. 12, 1924. [Convention date]. Gearing for stopping and starting machinery.-In a nailing-machine driven through a friction clutch controlled by a foot pedal, means are provided whereby the clutch is maintained in engagement after the foot has been removed from the pedal, for declutching after a complete revolution of the driving-shaft, and for applying a brake at the instant of declutching. To the clutch operating lever is secured one end of a spring 29, Fig. 1, of which the other end is secured to a pin 27 on a bar slidable longitudinally in a support 17 fixed to the machine. The pin 27 is engaged in a slot in a lever 23 fixed to the shaft 24 of the pedal 28, so that when the pedal is depressed the spring 29 is tensioned to engage the clutch. At the same time the bar is moved to the right and a roller 19 at one end of the bar engages the edge of a flange on a drum 1 secured to the driving- shaft 30 of the machine and the clutch is thereby held in engagement until a notch 2 in the flange is entered by the roller 19, allowing the bar to move to the left and the clutch to be disengaged. At this moment, a ramp 20 having a screw and slot connection 21, 22 with the bar acts on a roller 13 on an arm 12, Fig. 3, secured to a shaft 10 having a cam portion which is turned into position to cause brake shoes 4, 5, mounted on fixed pivots 7, 8, to engage the inner surface of a brake drum 3 secured to the driving-shaft 30, so that the machine is stopped.
Patent GB-991896-A (GB)
Title: Plant for parking and/or storing vehicles
IPC: E04H6/06
Filed: 1961-08-29
Abstract: 991,896. Mechanical garages. F. TESTORI. Aug. 29, 1961 [Sept. 2, 1960], No. 31128/61. Heading B8E. An underground vehicle store consists of a plurality of superposed platforms 6, 8, 9 rigidly joined together and raisable, e.g. by a ram 4, to bring any one of the platforms to ground level. The arrangement is such that in the lowermost position of the set of platforms the upper platform 9 is at ground level and has surfaces in the plane of the roadway 1 and footpath 2 of a site on which vehicles and pedestrians are then free to move.
Patent GB-1184069-A (GB)
Title: Recording Method and apparatus
IPC: G01N35/08
Filed: 1967-07-06
Abstract: 1,184,069. Recording photo-electric measurement signals. TECHNICON CORP. July 6, 1967 [July 18, 1966],No.31153/67. Headings G1A and G1U. In the recording of electrical measurement signals, which are to be filtered to remove cyclical noise, the signals are passed through a circuit including a capacitative arrangement which is switchable between two resistor arrangements. With one it forms a low time constant circuit enabling it to follow signal variations. With the second it forms a high time constant circuit, suitable for filtering noise from the signals. The switching of the capacitative arrangement is arranged so that a flat steady value is quickly attained for recording. The capacitative arrangement comprises two capacitors, one of which is switched from its low to its high time constant condition, a fraction of a noise cycle (preferably about a half) after the other, so that the initial cyclical noise, which might delay the attainment of a steady value, is cancelled out. The circuit is similar to that described in Specification 1,183,981 but instead of a single capacitor connected between earth and the switch for switching it between the two resistor arrangements, the circuit comprises two capacitors of the same or similar value in parallel. Normally, there is no signal from the programming means on line 70 so that relays 54R and 56R are deenergized and the capacitors 62, 64 are in their low time constant conditions, following the signal variations. A signal then appears on line 70 representing the fact that a measurement signal is entering the filtering channel. The relay 54 is switched over, to connect the capacitor 62 into its high time constant circuit. At the time of switching the cyclical noise may be at a peak value e.g. at the peak of a positive half cycle. Thus, if only this capacitor 62 were being used in the filter circuit, as in the above mentioned Patent, owing to the high time constant, it would take a long time for the capacitor 62 to discharge to the steady state value representative of a filtered measurement signal. The switching of the other capacitor 64 is therefore delayed for half a noise cycle, so that when switched over it is charged by the negative half cycle noise peak and this cancels with the positive peak stored by capacitor 62. In fact, the switching of capacitor 64 may be slightly less than a half cycle afterwards, since the capacitor 62 will have discharged slightly. Alternatively the value of the second capacitor 64 is slightly less than that of 62.
Patent GB-909021-A (GB)
Title: Improvements in or relating to continuous cycle absorption refrigeration systems
Inventor: JUSTHAM REX RUSSELL
IPC: F25B37/00
Filed: 1960-09-09
Abstract: 909,021. Refrigerating. CARRIER ENGINEERING CO. Ltd. Aug. 15, 1961 [Sept. 9, 1960], No. 31211/60. Drawings to Specification. Class 29. This Specification discloses and claims the evaporator/absorber disclosed in Specification 909,022.
Patent GB-428290-A (GB)
Title: Improved process and means for shaping plates into hollowed objects, such as boat hulls, wings for aircraft, side-cars and the like
IPC: B21D5/01
Filed: 1933-11-10
Abstract: 428,290. Making trough-like articles. GILBERT, W. V., 336, Abbey House, Victoria Street, London. Nov. 10, 1933, No. 31318. [Classes 83 (ii) and 83 (iv)] Angular bending; stamping.- A hollow trough-like shell of aluminium, steel, or other sheet material is made by bending two opposite sides of a sheet or blank upwards to produce a trough 23 and then bending the trough across a transversely arranged saddle 10. One end may be held by a support 13<a> and die 13 while the middle rests on a table or edge 11 the other end being pressed down by a die 22 adjustable on a floating lever 18. The saddle 10 may have a number of different working faces and be rotatable to bring any one into use. The sides of the trough are prevented from opening by uprights 15 which may carry guides 24, Fig. 2. The trough may be clamped on the table 10 by a block 41, Fig. 12 having a pin 42 engaging a slot 43 in the lever 18. The base 12 may have lines to assist in setting the blank or with rails for fixing the parts of the apparatus. In a modified construction projections are provided on the table 10 so that when a flat sheet is clamped thereto or pressed thereon by the dies 13, 22 it is first bent into trough form. Two shells may be nested and welded together at the edges to form a hollow aircraft wing 30, Fig. 8 &c., or welded face to face to form a hollow container. The ends of a shell may be closed to form a boat hull &c., by flattening and welding or by inserting a semicircular or other plate and welding. More than one bend may be formed in the trough or if no bend is desired, the bent portion may be cut out and replaced by a part of lesser size. Parts of the shell may be stamped by separate dies. or by dies attached to the lever 18, table 10 &c. The shells are also stated to be suitable for making fire-place backs and side-car or pushcart bodies. The Provisional Specification states that the shells may be used for making floats or pontoons. Specifications 8316/06, 339,382, [both in Class 4], and 340,210, [Group XXXIII], are referred to.
Patent GB-1432391-A (GB)
Title: Load cell
IPC: G01G19/12
Filed: 1973-07-02
Abstract: 1432391 Load cells D C ENGLISH J L McCAULEY and G A HOLMSTROM 2 July 1973 [3 July 1972] 31398/73 Heading GIN A load cell comprises a beam 9 Fig. 5 supported at end portions 12 and carrying a load on its centre portion 10, the cross-section being reduced at 16 between these portions, to be distorted by the load by an amount measured by strain gauge resistors 17, 18 in a bridge network. For measuring the weight of logs L Fig. 1 on a truck 1 and trailer 2, two beams 9 are located on each part, supporting bunks 4, 5 for the logs. The output signals from the strain gauge bridge for each beam 9 are selectively added to enable the load on each part and the total load to be determined. Facilities are provided for offsetting the tare weights and for calibrating the sensitivity of the network. A scale pan balance using four beams 9 is also described Fig. 9 (not shown).
Patent GB-691809-A (GB)
Title: Improvements in agricultural machines
Inventor: BAMFORD CYRIL JOSEPH
IPC: A01D34/24
Filed: 1950-12-29
Abstract: 691,809. Reaping machines. BAMFORDS, Ltd. Dec. 17, 1951 [Dec. 29, 1950], No. 31543/50. Class 6(iii) Relates to an agricultural machine of the type having a working mechanism which is, actuated by a longitudinallyslidable rod 13 connected to the mechanism by a flexible connection 12. According to the invention, the rod is provided with means for restraining it from axial rotation due to vibration during use. As shown; a mowing machine has lifting gear 11 for raising the cutter-bar 10, the mechanism being actuated by a pull on a handle 16 at the free end of the rod 13. To obviate rotation the handle is symmetrically disposed relatively to the rod and the latter may also incorporate a loop 17 gravitationally-biased into a downwardly hanging position. Alternatively the rod may be cranked intermediately of the guides 14 and the end of the cranked portion may act as a stop in place of the normal stop 15. As a further alternative, the stop 15 may be weighted asymmetrically. Rotation may also be prevented by a rod 13 of non-circular cross-section sliding in guides 14 of similar form.
Patent GB-810764-A (GB)
Title: Improvements in or relating to elevated or low level flushing systems
IPC: F16K31/26
Filed: 1957-10-09
Abstract: 810,764. Water-waste-preventing cisterns. CHISHOLM, J. Oct. 9, 1957, No. 31587/57. Class 26. An elevated or low-level flushing cistern 1 comprises a float-controlled inlet valve member consisting of a valve plunger 7 slidably located in an inlet sleeve 5 extending from the supply pipe 6, the front end of the valve plunger being tapered to form a valve 8 cooperating with a valve seating aperture in the sleeve 5 the outer end of the plunger 7 being operated for opening and closing by a slotted arm 14 attached to the float rod 12 and arranged so that only limited opening of the valve 8 occurs, the rod 12 being supported by the arm 14 in its lowest position on flushing. The rod 12 is pivotally connected to the sleeve 5 by a pin and two lugs 18, the arm 14 being slotted in two directions to receive the plunger 7 and pin 16, vertical movement occurring between the arm 14 and the plunger 7 sufficient to control sliding of the plunger 7 from its closed to its open position and viceversa. The sleeve 5 has a water inlet opening 9 connected to an inlet pipe 10 terminating in a fish-tail shaped spreader 11 to silence the entry of water. In flushing, the disc valve 3 is raised by the rod 4 and water flows through the syphon pipe 20 and is projected radially into the space around the valve to reduce the noise. The float 13 has a drain hole 19.
Patent GB-444653-A (GB)
Title: Improvements in portable storage and delivering apparatus for detonators and the like
IPC: F42B39/00
Filed: 1934-11-03
Abstract: 444,653. Detonator receptacles. SPRAY, P. C. J., 8, Aspley Park Drive, and WIDDOWSON, H. J., Clinton House, Pelham Road, both in Nottingham. Nov. 3, 1934, No. 31590. [Class 9 (i)] [See also Group XVII] A device for storing and delivering detonators comprises a drum A having radially arranged compartments D, a casing C having an opening E, and means which can only be actuated by a key for rotating the drum to bring the compartments m succession mto register with the opening E. The drumrotating means comprises a worm wheel F on the end of the drum and a worm G on a shaft H having a squared end for the reception of a key inserted through a hole C<2> in the casing. A ratchet wheel J secured to the shaft H, and a spring R bearing on the one tooth of the wheel J, are provided for preventing return movement of the drum ; to permit the drum to be turned back for refilling the compartments, the shaft H is carried on a pivoted arm L which can be lowered to bring the worm G out of engagement with the wheel F. The drum A may be replaced by a conveyer chain upon which the compartments D are disposed, and the worm wheel F is mounted upon one of the conveyer sprocket wheels.
Patent GB-1466810-A (GB)
Title: Battery charger
IPC: H02J7/00
Filed: 1975-07-29
Abstract: 1466810 Battery chargers ESB Inc 29 July 1975 [7 Nov 1974] 31754/75 Heading H2H A battery charger comprises a controllable switch 40 connected between a D.C. source 10 and a battery 14, the switch being controlled to disconnect the source from the battery when the battery terminal voltage reaches a predetermined level which is varied depending on the magnitude of the battery terminal voltage and the rate of charge of the battery terminal voltage. Thus for a discharged battery the rate of charge of battery voltage is small and the predetermined level is high so that the average charging voltage is high, but for an almost fully charged battery the rate of charge of battery voltage is high and the predetermined level is low so that the average charging voltage is low and is just sufficient to maintain full charge. The basic concept is described with reference to Figs. 1-5 (not shown). The battery terminal voltage is applied to a reference signal generator, a battery voltage sensor, and a rate of charge sensor the output of which is either applied to vary the reference signal or the output of the battery voltage sensor, and the reference signal and the output of the battery voltage sensor are applied to a comparator which controls a power control circuit for the switch 40. In the particular embodiment described and shown in Fig. 6, a reference voltage R R <SP>1</SP> derived from the reference voltage V R  of the reference signal generator 53 is compared in a comparator IC7a with a voltage V R /N derived from the battery voltage. As long as V B /N is less than V R <SP>1</SP>, the output of IC7a is high and a comparator IC7b is powered. The comparator IC7b compares a ramp voltage from a generator 52 with a reference voltage V R <SP>11</SP> derived from the reference voltage V R  and applies an output to an optical coupler 55 for controlling the switch (SCR) 40 as long as the ramp voltage (which is synchronized with the A.C. line voltage) is below the reference voltage V R <SP>11</SP>. The rate sensor 56 is the feedback circuit of the comparator IC7a, and this circuit alters the reference voltage V R <SP>1</SP> at one input of the comparator IC7a. For a discharged battery the voltages appearing in the circuit are shown on Figs. 7(a) and 7(b), and for an almost fully charged battery the voltages are shown in Figs. 7(c) and 7(d).
Patent GB-389772-A (GB)
Title: Improvements in and relating to electric audible signalling devices
IPC: G10K1/063
Filed: 1932-11-10
Abstract: 389,772. Electric bells. BRITISH THOMSON-HOUSTON CO., Ltd., Crown House, Aldwych, London.-(Assignees of Young, W. L. ; 39, Harding Street, Pittsfield, Massachusetts, U.S.A.) Nov. 10, 1932, No. 31813. Convention date, Nov. 12, 1931. [Class 13.] A transformer provided with a movable secondary winding having a pair of contacts controlled by the motion thereof and connected in series therewith forms part of an audible signal. The invention is described in connection with a bell 27 which is sounded by a clapper 28 attached to a transformer winding 13 pivoted at 14 and surrounding the leg 11 of a core 10 provided with a high-voltage primary winding 12 fed from the lead 16. The secondary circuit comprising the movable coil 13 is completed through a bell push 17 and interrupter contacts 18, 19. Buffers 22 are provided to limit the travel of the moving coil. The bell may be mounted on a junction box or on a screw plug adapted to be screwed into an electrical socket.
Patent GB-1365233-A (GB)
Title: Piping tubes for use in the preparation of foodstuffs
IPC: A23G3/28
Filed: 1973-07-09
Abstract: 1365233 Piping tubes BEKENAL PRODUCTS CO Ltd 9 July 1973 [7 July 1972] 31846/72 Heading A2A In a piping tube, the entry end of the tube is belled outwards to present a rib formation 3 such that an annular channel 12 of partcircular cross-section is presented inside the tube so that the interior of the tube is enlarged opposite the rib. The channel 12 meets the main body of the tube in a rounded convex curve 13.